Benzene and Toluene Calibration Blends Mix#5

10:2 Di-PAPS-d4, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no.

1-Butoxy-2,3-difluoro-4-(trans-4-propylcyclohexyl)benzene, 1g

Method 200.8 / 1638 / 1640 Internal Standard, in 2%-HNO3/Water, 4x25ml